Oakland Raiders CB Taiwan Jones (foot) did not participate in practice Friday, Sept. 12, and has been ruled out for the team's Week 2 game. OT Matt McCants did not participate in practice and is questionable. LB Kaluka Maiava (illness) and LB Nick Roach (concussion) were both limited in practice and are questionable. CB Chimdi Chekwa (knee) fully participated in practice and is probable.